Question

name:
directions: answer the following speed and acceleration problems using the circle diagram. for each calculation, show your work and write the answer with appropriate si units.
unit 1 - speed and acceleration practice problems

1. during a race, a sprinter runs at a speed of 6 m/s. 2 seconds later, she is running at a speed of 10 m/s. what is the runners acceleration? show your work.

equation circle diagram given work answer in si units

Explanation:

Step1: Identify the acceleration formula

The formula for acceleration is $a=\frac{v - u}{t}$, where $a$ is acceleration, $v$ is final - velocity, $u$ is initial - velocity, and $t$ is time.

Step2: Identify the given values

Initial velocity $u = 6\ m/s$, final velocity $v = 10\ m/s$, and time $t=2\ s$.

Step3: Substitute the values into the formula

$a=\frac{10 - 6}{2}=\frac{4}{2}$

Step4: Calculate the acceleration

$a = 2\ m/s^{2}$

Answer:

$2\ m/s^{2}$